Question

One pound-mass of diatomic oxygen (O₂ molecular weight 32) is contained in a 100-gal tank. Find the specific volume on both a mass and mole basis (v and v ). 

Answer 1

V = 231 in³ = (231 / 12³) ft³ = 0.1337 ft³

This is based on the definition of the specific volume

v = V/m = 0.1337 ft³/1 lbm = 0.1337 ft³/lbm 

v¯ = V/n = V/m/M = Mv = 32 × 0.1337

= 4.278 ft³/lbmol